The Caveat emptor reference article from the English Wikipedia on 24-Apr-2004
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Caveat emptor

Caveat emptor is Latin for "let the buyer beware".

Before statutory law the buyer had no warranty of the quality of goods. In many jurisdictions, the law now requires that goods must be of "merchantable quality". However, this implied warranty can be difficult to enforce, and may not apply to all products. Hence, buyers are still advised to be cautious.

See also: List of Latin phrases